---
lang: "en"
title: "VS321-868M: - LoRaWAN AI Wireless Occupancy Sensor"
sku: "VS321-868M"
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---

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VS321-868M: - LoRaWAN AI Wireless Occupancy Sensor

The VS321 is a low-power, battery-powered wireless presence sensor with advanced AI algorithms, achieving 95% occupancy detection accuracy thanks to its AI algorithm. It features integrated temperature, humidity, and ambient light sensors to provide comprehensive environmental monitoring. The wireless design allows for simple and flexible installation. With easy configuration and wireless detection, the VS321 can be integrated with the Milesight LoRaWAN® gateway and the Milesight Development Platform, enabling remote monitoring, data visualization, and centralized management. As a Milesight D2D controller, the VS321 communicates seamlessly with other Milesight D2D devices, with peer-to-peer interaction without depending on the gateway. The VS321 can be used in scenarios such as meeting rooms, offices, and campuses to detect space occupancy or staff activity.

## Technical Specifications

- Field of view 129° horizontal, 93° vertical
- Installation height 2.4 m ~ 4 m
- Required illumination 50 Lux
- PIR measurement angle 115° PIR detection area radius: 4 m (15 °C, installation height 3 m)
- Recognition rate Up to 95%
- Temperature: Operating principle CMOSens® (MEMS) digital technology, Measurement range -40 °C~125 °C, Accuracy ±1 °C, Resolution 0.1 °C
- Humidity: Operating principle CMOSens® (MEMS) digital technology, Measurement range 0~100 %RH, Accuracy ± 2.5 %RH, Resolution 0.5 %RH
- Power supply
1) 4 replaceable 2700 mAh ER14505 Li-SOCl2 batteries
2) DC 5 V/1 A via Type-C port
Battery life 2 (8 hours of operation per day, 5-minute detection and reporting interval, 25 °C)
Approx. 11.3 years (SF7, EU868)
Approx. 10.8 years (SF7, US915)
Approx. 7.5 years (SF10, EU868 and US915)
- Operating temperature 0 °C ~ +30 °C
- Relative humidity 0 ~ 95% (non-condensing)
- Protection degree IP30
- Housing and color Plastic (UL94, V2) and white/black (optional)
- Weight 145 g (batteries excluded)
- Dimensions 100 × 100 × 26 mm (3.94 × 3.94 × 1.02 inches)
- Installation Ceiling mounting (screws or adhesive on the back)

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Source: https://shop.marcomweb.it/en/converters-sensors/vs321-868m-lorawan-ai-wireless-occupancy-sensor

MARCOM S.r.l. — a trusted supplier for industrial automation and building automation.